Air Engines: The History, Science, and Reality of the Perfect En

Air Engines: The History, Science, and Reality of the Perfect Engine by Theodor Finkelstein # Hardcover: 268 pages # Publisher: American Society of Mechanical Engineers (September 1, 2001) # Language: English # ISBN-10: 0791801713 # ISBN-13: 978-0791801710 1.1 Introduction The ‘hot-air engine’, or ‘caloric engine’ as it was often called, has been considered obsolete until recently. It is not generally known that during the latter part of the nineteenth century many thousands of several kinds of such engines were produced and used in many workshops as the only source of mechanical power, before becoming displaced by the development of modern high-speed internal combustion engines of much greater specific power. Modern textbooks in thermodynamics or college courses on heat engines include little more than a brief reference to regenerative air cycles. Hence, very few young engineers are fully conversant with the working principle of regenerative air cycles with reciprocating mechanisms, and fewer still have had an opportunity of seeing such an engine in operation. Extensive new developments have taken place recently, and it is possible that the old air engine is due for a revival in modernized form. It has been stated that the use of modern materials, such as light alloys and heat- resisting steels, and the application of new knowledge of thermodynamics and heat transfer, have put the whole subject in a new perspective. Claims have been made for engines with overall efficiencies and specific powers exceeding those of internal combustion engines, and a reversed air engine operating as a heat pump, in which air can be liquefied without pre- compression, is being marketed. Many research workers in this field are beginning to realize that the inherent high thermodynamic efficiency of engines working on reversible air cycles offers possibilities which may be unattainable by any other known process. It is hoped that this technical review of past achievements in this field will stimulate further interest in the subject and perhaps prepare the ground for the application of the principle to be described to a variety of apparently unrelated purposes such as power drives, small electric generators, solar energy convertors, refrigerators, and air conditioners as well as gas liquefiers and low- temperature physics research tools.

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savant22 (2009-06-15)

This is my first torrent, I hope you all enjoy! It's unfortunate that this book is so expensive (around $600) as this information is very important.